The correct option is B 900
Taenia solium has a dorsoventrally flattened worm whose body is divided into segments called proglottids. There are three regions in the body are the scolex, unsegmented neck and the segmented posterior region called strobila. Strobila forms the bulk of body and consists of a series of proglottids arranged in a linear fashion. The strobila may contain as many as 800-900 proglottids.